Object variable or With variable not set

Hi all,

I've got a music player and I'm having a tough time fixing two errors. Whenever I try to run this line of code with a .mp4 or .wma file it will give me the error object variable or with variable not set.

VB Code:

duration = DirectShow.DirectShow_Position.duration

Does anyone know why?

What is DirectShow?

VB Code:

Dim DirectShow As ???

you need to do:

VB Code:

Set DirectShow = New ???

b4 you call your line of code.
Unless DirectShow is a control.

Woka

thanks for the reply woka i was worried no one would answer this:

but directshow is a modual for DirectX here is the code in the modual

VB Code:

Option Explicit
 
Private Const MAX_VOLUME As Long = 100
Private Const MAX_BALANCE As Long = 100
Private Const MAX_SPEED As Long = 226
 
Public DirectShow_Event As IMediaEvent
Public DirectShow_Control As IMediaControl
Public DirectShow_Position As IMediaPosition
Public DirectShow_Audio As IBasicAudio
Public DirectShow_Video As IBasicVideo
Public DirectShow_Video_Window As IVideoWindow
 
Public Video_Media As Boolean
Public Video_Running As Boolean
Public Fullscreen_Enabled As Boolean
Public Fullscreen_Width As Long
Public Fullscreen_Height As Long
 
Public moApp As Word.Application
Private mbKillMe As Boolean
 
 
Public Function DirectShow_Load_Media(File_Name As String) As Boolean
 
    On Error GoTo Error_Handler
                
        If Right(File_Name, 4) = ".mp3" Then
                    Video_Media = False
                            Set DirectShow_Control = New FilgraphManager
            DirectShow_Control.RenderFile (File_Name)
        
            Set DirectShow_Audio = DirectShow_Control
            
            DirectShow_Audio.Volume = 0
            DirectShow_Audio.Balance = 0
        
            Set DirectShow_Event = DirectShow_Control
            Set DirectShow_Position = DirectShow_Control
            
            DirectShow_Position.Rate = 1
            
            DirectShow_Position.CurrentPosition = 0
            
        ElseIf Right(File_Name, 4) = ".mpeg" Or _
               Right(File_Name, 4) = ".mpg" Or _
               Right(File_Name, 4) = ".avi" Or _
               Right(File_Name, 4) = ".mp4" Or _
               Right(File_Name, 4) = ".wma" Or _
               Right(File_Name, 4) = ".mov" Then
                           Video_Media = True
                           Set DirectShow_Control = New FilgraphManager
            DirectShow_Control.RenderFile (File_Name)
 
            Set DirectShow_Audio = DirectShow_Control
    
            DirectShow_Audio.Volume = 0
            DirectShow_Audio.Balance = 0
 
            If Fullscreen_Enabled = True Then
                                Set DirectShow_Video_Window = DirectShow_Control
                DirectShow_Video_Window.WindowStyle = CLng(&H6000000)
                DirectShow_Video_Window.Top = 0
                DirectShow_Video_Window.Left = 0
                DirectShow_Video_Window.Width = Fullscreen_Width
                DirectShow_Video_Window.Height = Fullscreen_Height
                DirectShow_Video_Window.Owner = frmMain.hwnd
                
            Else
                Set DirectShow_Video_Window = DirectShow_Control
                DirectShow_Video_Window.WindowStyle = CLng(&H6000000)
                DirectShow_Video_Window.Top = 0
                DirectShow_Video_Window.Left = 0
                DirectShow_Video_Window.Width = frmMain.ScaleWidth
                DirectShow_Video_Window.Height = frmMain.ScaleHeight
                DirectShow_Video_Window.Owner = frmMain.hwnd
            
            End If
                    Set DirectShow_Event = DirectShow_Control
            Set DirectShow_Position = DirectShow_Control
            
            DirectShow_Position.Rate = 1
            
            DirectShow_Position.CurrentPosition = 0
               
        Else
                    GoTo Error_Handler
        
        End If
 
    DirectShow_Load_Media = True
        Exit Function
Error_Handler:
 
    DirectShow_Load_Media = False
 
End Function
 
 
Public Function DirectShow_Play() As Boolean
        On Error GoTo Error_Handler
    
    If Video_Media = True Then Video_Running = True
        DirectShow_Control.Run
 
    DirectShow_Play = True
        Exit Function
 
Error_Handler:
    
    DirectShow_Play = False
 
End Function
 
Public Function DirectShow_Stop() As Boolean
 
    On Error GoTo Error_Handler
    
    If Video_Media = True Then
            Video_Running = False
            Video_Media = False
        End If
        DirectShow_Control.Stop
        DirectShow_Position.CurrentPosition = 0
 
    DirectShow_Stop = True
        Exit Function
 
Error_Handler:
 
    DirectShow_Stop = False
 
End Function
 
Public Function DirectShow_Pause() As Boolean
 
    On Error GoTo Error_Handler
    
    DirectShow_Control.Stop
 
    DirectShow_Pause = True
        Exit Function
Error_Handler:
    
    DirectShow_Pause = False
 
End Function
 
Public Function DirectShow_Volume(ByVal Volume As Long) As Boolean
 
    On Error GoTo Error_Handler
    
    If Volume >= MAX_VOLUME Then Volume = MAX_VOLUME
    
    If Volume <= 0 Then Volume = 0
    
    DirectShow_Audio.Volume = (Volume * MAX_VOLUME) - 10000
 
    DirectShow_Volume = True
        Exit Function
Error_Handler:
 
    DirectShow_Volume = False
 
End Function
 
Public Function DirectShow_Balance(ByVal Balance As Long) As Boolean
 
    On Error GoTo Error_Handler
    
    If Balance >= MAX_BALANCE Then Balance = MAX_BALANCE
    
    If Balance <= -MAX_BALANCE Then Balance = -MAX_BALANCE
    
    DirectShow_Audio.Balance = Balance * MAX_BALANCE
    
    DirectShow_Balance = True
        Exit Function
Error_Handler:
 
    DirectShow_Balance = False
 
End Function
 
Public Function DirectShow_Speed(ByVal Speed As Single) As Boolean
 
    On Error GoTo Error_Handler
 
    If Speed >= MAX_SPEED Then Speed = MAX_SPEED
    
    If Speed <= 0 Then Speed = 0
 
    DirectShow_Position.Rate = Speed / 100
 
    DirectShow_Speed = True
        Exit Function
 
Error_Handler:
 
    DirectShow_Speed = False
 
End Function
 
Public Function DirectShow_Set_Position(ByVal Hours As Long, ByVal Minutes As Long, ByVal Seconds As Long, Milliseconds As Single) As Boolean
        On Error GoTo Error_Handler
    
    Dim Max_Position As Single
        Dim Position As Double
        Dim Decimal_Milliseconds As Single
        'Keep minutes within range
            Minutes = Minutes Mod 60
        
    'Keep seconds within range
            Seconds = Seconds Mod 60
        
    'Keep milliseconds within range and keep decimal
            Decimal_Milliseconds = Milliseconds - Int(Milliseconds)
        
        Milliseconds = Milliseconds Mod 1000
        
        Milliseconds = Milliseconds + Decimal_Milliseconds
    
    'Convert Minutes & Seconds to Position time
            Position = (Hours * 3600) + (Minutes * 60) + Seconds + (Milliseconds * 0.001)
    
    Max_Position = DirectShow_Position.StopTime
 
    If Position >= Max_Position Then
            Position = 0
        
        GoTo Error_Handler
    
    End If
        If Position <= 0 Then
            Position = 0
        
        GoTo Error_Handler
    
    End If
        DirectShow_Position.CurrentPosition = Position
    
    DirectShow_Set_Position = True
        Exit Function
Error_Handler:
 
    DirectShow_Set_Position = False
 
End Function
 
Public Function DirectShow_End() As Boolean
 
    On Error GoTo Error_Handler
    
    If DirectShow_Loop = False Then
            If DirectShow_Position.CurrentPosition >= DirectShow_Position.StopTime Then DirectShow_Stop
    
    End If
        DirectShow_End = True
        Exit Function
Error_Handler:
 
    DirectShow_End = False
 
End Function
 
Public Function DirectShow_Loop() As Boolean
 
    On Error GoTo Error_Handler
 
    If DirectShow_Position.CurrentPosition >= DirectShow_Position.StopTime Then
            DirectShow_Position.CurrentPosition = 0
    
    End If
        DirectShow_Loop = True
        Exit Function
Error_Handler:
 
    DirectShow_Loop = False
 
End Function
 
Public Sub DirectShow_Shutdown()
 
    Set DirectShow_Video_Window = Nothing
    Set DirectShow_Position = Nothing
    Set DirectShow_Event = Nothing
    Set DirectShow_Audio = Nothing
    Set DirectShow_Control = Nothing
 
End Sub

There si no DirectShow_Position in the module.
Plus I cant see anywhere where you do something like:

VB Code:

Set DirectShow_Event = New IMediaEvent

you must do this because you can use the DirectShow_Event object, or any of the other objects at the top of the module.

Woof

You do not need to use the module name, all you need is for the variable to be public (which it is).

You can just use this:

duration = DirectShow_Position.duration

directshow_position is at the top

VB Code:

Public DirectShow_Event As IMediaEvent
Public DirectShow_Control As IMediaControl
Public DirectShow_Position As IMediaPosition
Public DirectShow_Audio As IBasicAudio
Public DirectShow_Video As IBasicVideo
Public DirectShow_Video_Window As IVideoWindow

This code will work for the .mp3 files so I don't know what the problem is!

Quote:

---

Originally Posted by si_the_geek

You do not need to use the module name, all you need is for the variable to be public (which it is).

You can just use this:

duration = DirectShow_Position.duration

---

I changed that. But still I get the same error.


Should I PM CVMichael or Jacob Roman on the matter?

I assumed the issue was an initialisation one, as ".mp3" has a different piece of code... however the same is being done for DirectShow_Position either way, so I don't know what the problem is.

I guess CVMichael or Jacob Roman may know the cause, it's worth a try.

Actually, Jacob Roman has experience with Direct Show (I think), I only know how to work with DirectSound (for play & record wave, that's it).

Anyways...

I did not see the line "duration = DirectShow.DirectShow_Position.duration" from your original post in the code...
What line exectly do you get the error ?

Why don't you put line numbers for the code ? You can easily do that with MZTools, and use "Erl" to get the line number.
Or simply comment the "On Error Go To ...", so that VB breaks at the line with the problem...
Right now from the code, it looks like it's ignoring all errors... no MsgBox to show the error... just returning True/False...

It looks a lot like JR's coding style.

Yes, JR is the one who gave it to me. But I can't seem to get a hold of him about this problem.

Is the ActiveMovie control type library added in your references? Sorry I couldn't answer ya right away. I was banned....again. :bigyello: